EP0060716B1 - Phosphating metal surfaces - Google Patents
Phosphating metal surfaces Download PDFInfo
- Publication number
- EP0060716B1 EP0060716B1 EP82301330A EP82301330A EP0060716B1 EP 0060716 B1 EP0060716 B1 EP 0060716B1 EP 82301330 A EP82301330 A EP 82301330A EP 82301330 A EP82301330 A EP 82301330A EP 0060716 B1 EP0060716 B1 EP 0060716B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zinc
- ion
- process according
- iron
- phosphate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/18—Orthophosphates containing manganese cations
- C23C22/182—Orthophosphates containing manganese cations containing also zinc cations
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/18—Orthophosphates containing manganese cations
- C23C22/182—Orthophosphates containing manganese cations containing also zinc cations
- C23C22/184—Orthophosphates containing manganese cations containing also zinc cations containing also nickel cations
Definitions
- This invention relates to a process for phosphating metal surfaces, and to a composition suitable for use in that process.
- Japanese Patent Publication (unexamined) No. 107784/1980 (Nippon Paint Co. Ltd.) concerns a method of phosphating iron-based metal surfaces which is particularly suitable for treating manufactured products having complicated surfaces, such as automobile bodies.
- the method is in use commercially in the automotive industry for pretreating automobile bodies prior to cationic electrocoating, which is a coating process now used extensively in this industry.
- the phosphating method is carried out by first subjecting the metal surface to a dipping treatment with an acidic aqueous solution containing 0.5 to 1.5 g/I of zinc ion, 5 to 30 g/I of phosphate ion, and 0.01 to 0.2 g/I of nitrite ion and/or 0.05 to 2 g/I of m-nitrobenzenesulfonate ion at a bath temperature of 40 to 70°C for 15 seconds or more, followed by spraying with the above solution for 2 seconds or more.
- U.S. Patent 3,338,755 discloses a process for phosphating metal surfaces with a phosphating solution containing zinc, manganese, phosphate, nitrate, and nitrite, as essential ingredients, in stated proportions.
- German Patent 29 31 693 discloses a phosphating process using a solution containing zinc, manganese, phosphate, nitrate, and chlorate ions in stated gram-atom relationships.
- the present invention provides an improved phosphating method for metal surfaces, which is particularly suitable for treating metal surfaces, such as those of car bodies, which have both iron-based surfaces and zinc-based surfaces.
- the method is especially advantageous for forming phosphate coating films suitable for electrocoating particularly cationic electrocoating.
- the invention provides a process for phosphating an iron- or zinc-based metal surface comprising subjecting the metal surface to a dipping treatment in an acidic aqueous solution which contains:
- the invention also provides this solution as an acidic aqueous composition for phosphating an iron- or zinc-based metal surface.
- the acidic aqueous solution may also contain one or more of the following:
- the metal surface can then be coated with a siccative coating, for example by a known electrocoating process, preferably by the cationic electrocoating process.
- iron- or zinc-based metal surface means iron-based surfaces, iron alloy-based surfaces, zinc-based surfaces, and zinc alloy-based surfaces.
- Zinc- and zinc alloy-based surfaces include, for example, zinc plated steel plate formed by hot dipping, alloyed zinc plated steel plate formed by hot dipping, zinc plated steel plate formed by electroplating and alloyed zinc plated steel plate formed by electroplating.
- An important advantage of the present invention is that surfaces of metal components, such as car bodies, that contain both iron-based surfaces and zinc-based surfaces can be treated by the process of the invention with excellent results.
- the process of the invention produces better conversion coatings than are obtainable with conventional dip treating processes, and the amount of etching of the metal surfaces during the present process is only 2/3 to 4/5 that of conventional processes, so that both the quantity of chemicals used in the process as well as sludge formation is only from 2/3 to 4/5 that of conventional processes.
- the present process is equally applicable to the treatment of a single metal surface of a type described above.
- a particularly useful method of carrying out the present process is first to degrease the metal surface to be phosphated for example by spraying and/or dipping the metal surface in a known alkaline degreasing agent at 50°60°C for two minutes; washing the metal surface with tap water; spraying and/or dip treating the metal surface with a known surface conditioner at room temperature for 10-30 seconds; dipping the surface into the present acidic aqueous solution at 40°70°C for at least 15 seconds; and washing the metal surface with tap water followed by deionized water.
- the present acidic aqueous solution has a zinc ion concentration within the range of 0.5 to 1.5 g/l.
- the amount of zinc ion is less than about 0.5 g/l, an even phosphate film is not formed on an iron-based surface, and a partially blue-coloured film is formed.
- the amount of zinc ion exceeds about 1.5 g/I, then though an even phosphate film is formed, the film that forms on an iron-based surface tends to be in the form of leaf-like crystals, such as those formed in the spray process, which are unsuitable as a substrate for cationic electrocoating.
- the amount of manganese ion is less than about 0.6 g/I, the manganese content in the film formed on the zinc-based surface is insufficient, resulting in inadequate adhesivity of the coating film to the phosphate substrate after cationic electrocoating.
- the amount of manganese ion exceeds about 3 g/I, no further improvement in the phosphate coating is realized, and hence it is uneconomical to use amounts in excess of about 3 g/I.
- a source of zinc ions for use in the practice of the invention, one or more of the following can be employed: zinc oxide, zinc carbonate, and zinc nitrate.
- a source of phosphate ions one or more of the following can be used: sodium phosphate, zinc phosphate, and manganese phosphate.
- manganese carbonate manganese nitrate
- manganese chloride manganese phosphate
- nitrite ions As an example of a source of nitrite ions, one or more of the following can be employed: sodium nitrite and ammonium nitrite.
- sources of chlorate ions chloric acid, sodium chlorate or ammonium chlorate can be used.
- one or both of the following can be employed: sodium m-nitrobenzenesulfonate, and hydrogen peroxide.
- the addition of the nickel ion results in further improvement in the performance of the phosphate conversion coating, so that the adhesion and the corrosion-resistance of the film produced by cationic electrocoating are also further improved.
- nickel carbonate, nickel nitrate, nickel chloride or nickel phosphate can be used for nickel ions; and sodium nitrate, ammonium nitrate, zinc nitrate, manganese nitrate or nickel nitrate for nitrate ions.
- the present process is usually carried out at a temperature in the range of 40° to 70°C, preferably 45° to 60°C.
- a temperature in the range of 40° to 70°C, preferably 45° to 60°C.
- the conversion coating deteriorates, and long periods of treatment time are required to obtain a satisfactory coating.
- the temperature is higher than about 70°C, the conversion coating accelerators begin to decompose at an unacceptable rate, changing the composition of the bath and resulting in an unacceptable conversion coating. Also, precipitates, begin to form in the bath.
- the duration that the metal surface contacts the solution in the dip treatment is usually at least 15 seconds, and preferably is from 30 to 120 seconds. When treatment times shorter than about 15 seconds are employed, an adequate phosphate film is not formed.
- the components can advantageously be subjected first to dipping treatments for 15 seconds or more, preferably 30 to 90 seconds, and then to spray treatment with the solution for 2 seconds or more, preferably for 5 to 45 seconds.
- the spray treatment is preferably carried out for as long a period within the above range as the speed of the production line will permit.
- the dipping treatment according to the present invention includes the combination of dipping followed by spraying.
- Examples I to VII are Examples of the process and compositions of the invention.
- Examples VIII to XIII are Examples given for comparison purposes.
- Cross-cuts were made on an electrocoated plate; 5% brine was sprayed thereon for 500 hours (zinc plated steel plate) or 1000 hours (cold rolled steel plate).
- grids 100 squares were made at 1 mm intervals or at 2 mm intervals using a sharp cutter; an adhesive tape was attached to each surface; and the number of squares of coating film that remained on the plate after the removal of the adhesive tape were counted.
- a coated plate was set at a 15 degree angle to the horizontal plane, and an arrow with a cone shaped head with a 90 degree vertical angle, made of alloyed steel (material quality, JIS-G-4404, hardness Hv 700 or higher), weighing 1.00 g and 14.0 mm in total length was dropped repeatedly from a distance of 150 cm, until 25 scratches were made on the coated surface. Subsequently, the coated plate was subjected to 4 cycles of testing, each cycle consisting of first the brine spray test (JIS-Z-2871, 24 hours), second, a moisture test (temperature of 40°C, relative humidity 85%, 120 hours), and third, standing at room temperature (24 hours). After testing, the average value (mm) of the largest diameter of rust spots and blisters was obtained, with the results shown in Table 2.
Landscapes
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical Treatment Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Chemically Coating (AREA)
- Laminated Bodies (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Glass Compositions (AREA)
- Secondary Cells (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82301330T ATE33684T1 (de) | 1981-03-16 | 1982-03-16 | Phosphatierung von metalloberflaechen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP38411/81 | 1981-03-16 | ||
JP56038411A JPS57152472A (en) | 1981-03-16 | 1981-03-16 | Phosphating method for metallic surface for cation type electrodeposition painting |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0060716A1 EP0060716A1 (en) | 1982-09-22 |
EP0060716B1 true EP0060716B1 (en) | 1988-04-20 |
Family
ID=12524551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82301330A Expired EP0060716B1 (en) | 1981-03-16 | 1982-03-16 | Phosphating metal surfaces |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0060716B1 (es) |
JP (1) | JPS57152472A (es) |
AT (1) | ATE33684T1 (es) |
AU (1) | AU554406B2 (es) |
BR (1) | BR8201400A (es) |
CA (1) | CA1200739A (es) |
CS (1) | CS179582A2 (es) |
DE (1) | DE3278367D1 (es) |
ES (1) | ES8302127A1 (es) |
MX (2) | MX156539A (es) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138844A (en) * | 1983-04-26 | 1984-10-31 | Pyrene Chemical Services Ltd | Formation of phosphate coatings on zinc and iron surfaces |
EP0135622A1 (en) * | 1983-08-22 | 1985-04-03 | Nippon Paint Co., Ltd. | Phosphating metal surfaces |
GB2148951A (en) * | 1983-11-02 | 1985-06-05 | Pyrene Chemical Services Ltd | Phosphating processes and compositions |
EP0172806A1 (en) * | 1984-01-06 | 1986-03-05 | Ford Motor Company | Alkaline resistance phosphate conversion coatings |
EP0213567A1 (de) * | 1985-08-26 | 1987-03-11 | HENKEL CORPORATION (a Delaware corp.) | Verfahren zum Aufbringen von Phosphatüberzügen |
EP0219779A2 (de) * | 1985-10-18 | 1987-04-29 | Gerhard Collardin GmbH | Verfahren zur Phosphatierung elektrolytisch verzinkter Metallwaren |
US4941930A (en) * | 1986-09-26 | 1990-07-17 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel phosphate coating |
EP0385806A1 (en) * | 1989-03-02 | 1990-09-05 | Nippon Paint Co., Ltd. | Phosphate coatings for metal surfaces |
WO1990012901A1 (de) * | 1989-04-21 | 1990-11-01 | Henkel Kommanditgesellschaft Auf Aktien | Chlorat- und nitritfreies verfahren zur herstellung von nickel- und manganhaltigen zinkphosphatschichten |
WO1991002829A2 (de) * | 1989-08-17 | 1991-03-07 | Henkel Kommanditgesellschaft Auf Aktien | Verfahren zur herstellung von manganhaltigen zinkphosphatschichten auf verzinktem stahl |
AU624433B2 (en) * | 1986-09-26 | 1992-06-11 | Ppg Industries Ohio, Inc. | Concentrated coating compositions |
US5211769A (en) * | 1989-12-19 | 1993-05-18 | Nippon Paint Co., Ltd. | Method for phosphating metal surface with zinc phosphate |
US5238506A (en) * | 1986-09-26 | 1993-08-24 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel-manganese phosphate coating |
US5244512A (en) * | 1991-05-18 | 1993-09-14 | Nippon Paint Co., Ltd. | Method for treating metal surface with zinc phosphate |
US5268041A (en) * | 1990-04-27 | 1993-12-07 | Metallgesellschaft Ag | Process for phosphating metal surfaces |
EP1012355A1 (en) * | 1996-12-04 | 2000-06-28 | Henkel Corporation | Sludge reducing zinc phosphating process and composition |
US6447662B1 (en) | 1998-08-01 | 2002-09-10 | Henkel Kommanditgesellschaft Auf Aktien | Process for phosphatizing, rerinsing and cathodic electro-dipcoating |
US6620263B1 (en) | 1999-11-04 | 2003-09-16 | Henkel Kommanditgesellschaft Auf Aktien | Zinc phosphating process and composition with reduced pollution potential |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5935681A (ja) * | 1982-08-24 | 1984-02-27 | Nippon Paint Co Ltd | カチオン型電着塗装用金属表面のリン酸塩処理方法 |
DE3689442T2 (de) | 1985-08-27 | 1994-06-16 | Nippon Paint Co Ltd | Saure, wässrige Phosphatüberzugslösungen für ein Verfahren zum Phosphatbeschichten metallischer Oberfläche. |
US4793867A (en) * | 1986-09-26 | 1988-12-27 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel phosphate coating |
JPS63227786A (ja) * | 1987-03-16 | 1988-09-22 | Nippon Parkerizing Co Ltd | 鋼板の電着塗装前処理用りん酸塩処理方法 |
JPH07100870B2 (ja) * | 1990-04-24 | 1995-11-01 | 日本ペイント株式会社 | 金属表面のリン酸亜鉛皮膜処理方法 |
US5328526A (en) * | 1992-04-03 | 1994-07-12 | Nippon Paint Co., Ltd. | Method for zinc-phosphating metal surface |
US5792283A (en) * | 1993-09-06 | 1998-08-11 | Henkel Kommanditgesellschaft Auf Aktien | Nickel-free phosphating process |
DE19511573A1 (de) * | 1995-03-29 | 1996-10-02 | Henkel Kgaa | Verfahren zur Phosphatierung mit metallhaltiger Nachspülung |
EP1693181B1 (en) * | 2003-11-28 | 2012-04-11 | Bridgestone Corporation | Support body for run-flat tire and method of manufacturing the same |
JP6075167B2 (ja) * | 2012-04-18 | 2017-02-08 | Jfeスチール株式会社 | 自動車の足回り部材の溶接部塗装後耐食性改善方法および自動車の足回り部材ならびに自動車の足回り部材の製造方法 |
JP6157622B2 (ja) | 2012-08-23 | 2017-07-05 | ピールブルグ パンプ テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツングPierburg Pump Technology GmbH | 燃焼機関によって駆動される機械式流体ポンプ |
WO2014029446A1 (en) | 2012-08-23 | 2014-02-27 | Pierburg Pump Technology Gmbh | Mechanical combustion-engine-driven fluid pump |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0018841A1 (en) * | 1979-05-02 | 1980-11-12 | Amchem Products, Inc. a Corporation organised under the Laws of the State of Delaware United States of America | Composition and process for zinc-phosphate coating a metal surface, coated metal surface and a process for painting the coated surface |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS506418B1 (es) * | 1971-07-06 | 1975-03-13 | ||
JPS5811513B2 (ja) * | 1979-02-13 | 1983-03-03 | 日本ペイント株式会社 | 金属表面の保護方法 |
GB2072225B (en) * | 1980-03-21 | 1983-11-02 | Pyrene Chemical Services Ltd | Process and composition for coating metal surfaces |
-
1981
- 1981-03-16 JP JP56038411A patent/JPS57152472A/ja active Granted
-
1982
- 1982-03-15 BR BR8201400A patent/BR8201400A/pt not_active IP Right Cessation
- 1982-03-15 AU AU81507/82A patent/AU554406B2/en not_active Expired
- 1982-03-15 MX MX191815A patent/MX156539A/es unknown
- 1982-03-15 CA CA000398352A patent/CA1200739A/en not_active Expired
- 1982-03-15 MX MX011955A patent/MX172180B/es unknown
- 1982-03-16 AT AT82301330T patent/ATE33684T1/de not_active IP Right Cessation
- 1982-03-16 DE DE8282301330T patent/DE3278367D1/de not_active Expired
- 1982-03-16 EP EP82301330A patent/EP0060716B1/en not_active Expired
- 1982-03-16 CS CS821795A patent/CS179582A2/cs unknown
- 1982-03-16 ES ES510472A patent/ES8302127A1/es not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0018841A1 (en) * | 1979-05-02 | 1980-11-12 | Amchem Products, Inc. a Corporation organised under the Laws of the State of Delaware United States of America | Composition and process for zinc-phosphate coating a metal surface, coated metal surface and a process for painting the coated surface |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138844A (en) * | 1983-04-26 | 1984-10-31 | Pyrene Chemical Services Ltd | Formation of phosphate coatings on zinc and iron surfaces |
EP0135622A1 (en) * | 1983-08-22 | 1985-04-03 | Nippon Paint Co., Ltd. | Phosphating metal surfaces |
GB2148951A (en) * | 1983-11-02 | 1985-06-05 | Pyrene Chemical Services Ltd | Phosphating processes and compositions |
EP0172806A1 (en) * | 1984-01-06 | 1986-03-05 | Ford Motor Company | Alkaline resistance phosphate conversion coatings |
EP0172806A4 (en) * | 1984-01-06 | 1986-05-16 | Ford Motor Co | ALKALINE RESISTANCE PHOSPHATE CONVERSION COATING. |
AU594685B2 (en) * | 1985-08-26 | 1990-03-15 | Parker Chemical Company | Method of forming phosphate coatings on zinc |
EP0213567A1 (de) * | 1985-08-26 | 1987-03-11 | HENKEL CORPORATION (a Delaware corp.) | Verfahren zum Aufbringen von Phosphatüberzügen |
EP0219779A2 (de) * | 1985-10-18 | 1987-04-29 | Gerhard Collardin GmbH | Verfahren zur Phosphatierung elektrolytisch verzinkter Metallwaren |
US4762572A (en) * | 1985-10-18 | 1988-08-09 | Gerhard Collardin Gmbh | Process for phosphating electrolytically zinc-coated metals |
EP0219779A3 (en) * | 1985-10-18 | 1988-12-21 | Gerhard Collardin Gmbh | Phosphatizing process for electrolytically galvanized metal objects |
AU624433B2 (en) * | 1986-09-26 | 1992-06-11 | Ppg Industries Ohio, Inc. | Concentrated coating compositions |
US4941930A (en) * | 1986-09-26 | 1990-07-17 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel phosphate coating |
US5238506A (en) * | 1986-09-26 | 1993-08-24 | Chemfil Corporation | Phosphate coating composition and method of applying a zinc-nickel-manganese phosphate coating |
EP0385806A1 (en) * | 1989-03-02 | 1990-09-05 | Nippon Paint Co., Ltd. | Phosphate coatings for metal surfaces |
WO1990012901A1 (de) * | 1989-04-21 | 1990-11-01 | Henkel Kommanditgesellschaft Auf Aktien | Chlorat- und nitritfreies verfahren zur herstellung von nickel- und manganhaltigen zinkphosphatschichten |
WO1991002829A3 (de) * | 1989-08-17 | 1991-04-04 | Henkel Kgaa | Verfahren zur herstellung von manganhaltigen zinkphosphatschichten auf verzinktem stahl |
WO1991002829A2 (de) * | 1989-08-17 | 1991-03-07 | Henkel Kommanditgesellschaft Auf Aktien | Verfahren zur herstellung von manganhaltigen zinkphosphatschichten auf verzinktem stahl |
US5211769A (en) * | 1989-12-19 | 1993-05-18 | Nippon Paint Co., Ltd. | Method for phosphating metal surface with zinc phosphate |
US5399208A (en) * | 1989-12-19 | 1995-03-21 | Nippon Paint Co., Ltd. | Method for phosphating metal surface with zinc phosphate |
US5268041A (en) * | 1990-04-27 | 1993-12-07 | Metallgesellschaft Ag | Process for phosphating metal surfaces |
US5244512A (en) * | 1991-05-18 | 1993-09-14 | Nippon Paint Co., Ltd. | Method for treating metal surface with zinc phosphate |
EP1012355A1 (en) * | 1996-12-04 | 2000-06-28 | Henkel Corporation | Sludge reducing zinc phosphating process and composition |
US6447662B1 (en) | 1998-08-01 | 2002-09-10 | Henkel Kommanditgesellschaft Auf Aktien | Process for phosphatizing, rerinsing and cathodic electro-dipcoating |
US6620263B1 (en) | 1999-11-04 | 2003-09-16 | Henkel Kommanditgesellschaft Auf Aktien | Zinc phosphating process and composition with reduced pollution potential |
Also Published As
Publication number | Publication date |
---|---|
JPH0137478B2 (es) | 1989-08-07 |
AU8150782A (en) | 1982-09-23 |
ES510472A0 (es) | 1983-02-01 |
ATE33684T1 (de) | 1988-05-15 |
CS179582A2 (en) | 1984-06-18 |
ES8302127A1 (es) | 1983-02-01 |
MX172180B (es) | 1993-12-07 |
EP0060716A1 (en) | 1982-09-22 |
DE3278367D1 (en) | 1988-05-26 |
JPS57152472A (en) | 1982-09-20 |
BR8201400A (pt) | 1983-02-01 |
MX156539A (es) | 1988-09-08 |
CA1200739A (en) | 1986-02-18 |
AU554406B2 (en) | 1986-08-21 |
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